CBSE Class 12 Informatics Practices Boards Question Paper Solved 2018

CBSE Class 12 Informatics Practices Boards Question Paper Solved 2018. Students can download the last year question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

 INFORMATION PRACTICES

1. (a) ABC Company wants to link its computers in the Head office in New Delhi to its office in Sydney. Name the type of Network that will be formed. Which Communication media should be used to form this Network ? 2

(b) Which of the following is/are not communication media ?

(i) Microwaves

(ii) Optical Fiber cable

(iii) Node

(iv) Radio waves

Identify which of the above mentioned communication media are Wired media and which ones are Wireless media. 

(c) Write two examples each of software in the following categories : 

(i) Open Source Operating System

(ii) Open Source Web Browser

(d) Expand the following terms : 

(i) GSM

(ii) IP

(e) Name the devices : 

(i) This device constantly looks at all the data entering and exiting your connection. It can block or reject data in response to an established rule.

(ii) This device connects multiple nodes to form a network. It redirects the received information only to the intended node(s).

2.(a) Identify the invalid variable names. Sate the reason if invalid. 

(i) Marks Unit

(ii) Product_1

(iii) Sales123

(iv) 2Marks

(b) Write the data type of variables that should be used to store : 

(i) Marks of students

(ii) Grades of students (Grade can be ‘A’ or ‘B’ or ‘C’)

(c) Write examples of any two properties and any two methods of jButton component. 

(d) Write the purpose of HTML. Distinguish between <P> tag and <BR> tag. 

(e) Distinguish between ComboBox and ListBox. When would you prefer using them over Radiobutton and Checkbox ? 

(f) Rewrite the following code using switch statement : 

CBSE _Class _12 ComputerPIC_Question_Paper

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